Merck & Co., Inc. (MRK)
Data as of , from SEC Form 4 filings.
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About Merck & Co., Inc. (MRK)
Merck & Co., Inc. files with the SEC under CIK 0000310158 and is classified as pharmaceutical preparations. It is grouped with Health Care companies on this site.
MRK Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 17 | 228,238 | $29.98M |
| Grant or award | 3 | 374.2 | |
| Option exercise | 16 | 252,960 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
MRK insider transactions (Form 4)
3999 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 3 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Caroline Litchfield - Officer | Option exercise | Common Stock | 41,997 | $53.06 | $2.23M | |
| Caroline Litchfield - Officer | Open-market sale | Common Stock | 41,997 | $119.61 footnote F1 | $5.02M | |
| Caroline Litchfield - Officer | Option exercise | Stock Option (Right to Buy) | 41,997 | $0.00 | - | |
| ||||||
| Dean Y. Li - Officer | Option exercise | Common Stock | 15,087 | $56.04 | $845K | |
| Dean Y. Li - Officer | Open-market sale | Common Stock | 15,087 | $118.77 footnote F1 | $1.79M | |
| Dean Y. Li - Officer | Option exercise | Stock Option (Right to Buy) | 15,087 | $0.00 | - | |
| ||||||
| Chirfi Guindo - Officer | Open-market sale | Common Stock | 20,000 | $121.88 footnote F1 | $2.44M | |
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| Richard R. Deluca - Officer | Open-market sale | Common Stock | 37,685 | $120.92 footnote F1 | $4.56M | |
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 Robert M. Davis - Officer | Open-market sale | Common Stock | 14,972 | $117.38 footnote F1 | $1.76M | |
| Robert M. Davis - Officer | Open-market sale | Common Stock | 32,462 | $118.35 footnote F2 | $3.84M | |
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| Jennifer Zachary - Officer | Grant or award | Common Stock | 11,583 footnote F1 | $107.40 | $1.24M | |
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| David Michael Williams - Officer | Grant or award | Common Stock | 6,112 footnote F1 | $107.40 | $656K | |
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| Dalton E. Smart III - Officer | Grant or award | Common Stock | 1,066 footnote F1 | $107.40 | $114K | |
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| Joseph Romanelli - Officer | Grant or award | Common Stock | 5,703 footnote F1 | $107.40 | $613K | |
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| Johannes Jacobus Oosthuizen - Officer | Grant or award | Common Stock | 5,026 footnote F1 | $107.40 | $540K | |
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| Caroline Litchfield - Officer | Grant or award | Common Stock | 15,852 footnote F1 | $107.40 | $1.70M | |
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| Dean Y. Li - Officer | Grant or award | Common Stock | 20,469 footnote F1 | $107.40 | $2.20M | |
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| Chirfi Guindo - Officer | Grant or award | Common Stock | 9,865 footnote F1 | $107.40 | $1.06M | |
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| Richard R. Deluca - Officer | Grant or award | Common Stock | 12,264 footnote F1 | $107.40 | $1.32M | |
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| Robert M. Davis - Officer | Grant or award | Common Stock | 47,434 footnote F1 | $107.40 | $5.09M | |
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 Sanat Chattopadhyay - Officer | Grant or award | Common Stock | 13,880 footnote F1 | $107.40 | $1.49M | |
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 Christine E. Seidman - Director | Grant or award | Phantom Stock | 77.19 | $105.26 | $8K | |
 Thomas H. Glocer - Director | Grant or award | Phantom Stock | 463.14 | $105.26 | $49K | |
 Mary Ellen Coe - Director | Grant or award | Phantom Stock | 285.01 | $105.26 | $30K | |
| Cristal N. Downing - Officer | Open-market sale | Common Stock | 7,085 | $87.00 | $616K | |
| David Michael Williams - Officer | Open-market sale | Common Stock | 8,614 | $83.59 footnote F1 | $720K | |
| ||||||
| Christine E. Seidman - Director | Grant or award | Phantom Stock | 96.81 | $83.93 | $8K | |
| Mary Ellen Coe - Director | Grant or award | Phantom Stock | 357.44 | $83.93 | $30K | |
| Thomas H. Glocer - Director | Grant or award | Phantom Stock | 580.84 | $83.93 | $49K | |
| David Michael Williams - Officer | Option exercise | Common Stock | 17,119 | $79.29 | $1.36M | |
| David Michael Williams - Officer | Tax withholding / forfeiture | Common Stock | 8,432 | $79.29 | $669K | |
| David Michael Williams - Officer | Option exercise | Restricted Stock Unit | 17,119 | $0.00 | - | |
| Chirfi Guindo - Officer | Option exercise | Common Stock | 36,903 | $79.29 | $2.93M | |
| Chirfi Guindo - Officer | Tax withholding / forfeiture | Common Stock | 18,175 | $79.29 | $1.44M | |
| Chirfi Guindo - Officer | Option exercise | Restricted Stock Unit | 36,903 | $0.00 | - | |
| Christine E. Seidman - Director | Grant or award | Phantom Stock | 102.64 | $79.16 | $8K | |
| Mary Ellen Coe - Director | Grant or award | Phantom Stock | 378.98 | $79.16 | $30K | |
| Thomas H. Glocer - Director | Grant or award | Phantom Stock | 615.84 | $79.16 | $49K | |
| Inge G. Thulin - Director | Grant or award | Phantom Stock | 2,863 | $76.84 | $220K | |
See every MRK filing on record
These pages show the latest 90 of 99 Form 4 filings on record. The 7-day demo shows all 99, and sign-up brings you back to this table.
Item 5.02, 9.01
Item 2.02, 9.01
Item 5.07
Item 8.01, 9.01
Recent MRK Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| CHIRFI GUINDO | Officer | 10,000 | $1.35M | View on EDGAR | |
| JENNIFER L ZACHARY | Officer | 80,315 | $10.72M |
Stock trades in MRK disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Maria Elvira SalazarRepublican, FL-27 | Sale (partial) |
MRK insider trading FAQ
What is the latest insider trade for MRK?
Merck & Co., Inc. (MRK) had 10 insider filings in the last 90 days, with the most recent on 2026-10-01. The full record for MRK runs to 99 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying MRK stock?
No insider purchases of MRK were filed in the last 90 days.
How many insiders are selling MRK stock?
17 insider sales of MRK were filed in the last 90 days, totaling $29.98M.
Where can I see MRK SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects MRK Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Christine E. Seidman view on EDGAR
- - Surendralal Lanca Karsanbhai view on EDGAR
- - Mary Ellen Coe view on EDGAR
- - Chirfi Guindo view on EDGAR
- - Jennifer Zachary view on EDGAR
- - Richard R. Deluca view on EDGAR
- - Richard R. Deluca view on EDGAR
- - David R. Maraldo view on EDGAR
- - David Michael Williams view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where MRK's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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